After an initial sketch on iPad, I decided to transpose my work onto a raw linen canvas, exploring the off-screen. The technique I used is that of a black BIC pen, which I apply like a pencil and then soften with various more or less abrasive erasers, all enhanced with a few touches of India ink to accentuate the contrast. This evolution reveals a five-point perspective, which adds to the 180° vision of the initial central part.